Palestinian Authority President Mahmoud Abbas called Trump's move "a deliberate undermining of all efforts to achieve peace," The Jerusalem Post reported. "[Trump's decision] represents a declaration of the United States' withdrawal from undertaking the role as it has played over the past decades in sponsoring the peace process," Abbas added.

Jordan dismissed Trump's declaration as "null and void," and rejected any unilateral move to change Jerusalem's legal status. Foreign Minister Ayman Safadi said later in a tweet that the US had "frustrated" peace efforts, adding that Jordan will "continue to work for an independent Palestinian state with East Jerusalem as its capital."

Egyptian President Abdel Fattah el-Sisi also condemned the move, and said in a statement that the US has been warned against "taking measures that would undermine the chances of peace in the Middle East".